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Current Speciation News and Events, Speciation News Articles.
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An (ecological) origin of species for tropical reef fish
Dealing a new blow to the dominant evolutionary paradigm, Luiz Rocha and colleagues from the Smithsonian Tropical Research Institute, Harvard University the University of Florida and the University of Hawaii, report coral reef fish from neighboring habitats may differ more from one another than from fish thousands of miles away. An ecological speciation model for coral reef organisms may spur the development of a more synthetic treatment of speciation on land and sea. (2005-04-06)

Cricket's finicky mating behavior boosts biodiversity
The Laupala cricket is the world's fastest-evolving invertebrate, say evolutionary biologists from Lehigh University and the University of Maryland. Female crickets select mates based on slight variations in the pulse rates of male courtship songs. Individual choices, the researchers say, can have macro-evolutionary consequences. (2005-02-04)

Theory on evolution of essential genes is overturned by new finding
A gene passed on by fathers that plays a vital role in helping fertilised eggs to develop into adults has helped scientists overturn the idea that essential genes have always been part of the genetic makeup of a species. (2005-01-25)

UBC prof's research challenges prevailing theory of how new species evolve
A research team lead by University of British Columbia zoology assistant professor Darren Irwin is the first in the world to demonstrate a genetic gradient--or path of gradually changing genetic traits--between two distinct species that have been isolated by distance. The research challenges the prevailing theory among evolutionary biologists that species evolve only when separated by a geographical barrier. (2005-01-20)

Dec. 16-18 evolution meeting in Irvine, Calif.
The Sackler Colloquium will celebrate the 100th birthday of evolutionist Ernst Mayr, author of Systematics and the Origin of Species (1942) one of the four books often considered the foundation of the modern theory of evolution. (2004-12-13)

What women want makes a difference
Mating discrimination between two species of Drosophila is more pronounced where they hybridize and genes related to odor appear responsible for this (2004-11-22)

Evidence for sympatric speciation by host shift in the sea
Using a combination of genetic, ecological, and biogeographic studies, researchers have found that a new species of reef fish might have evolved when some individuals of the ancestral population began inhabiting a novel species of coral and that this (2004-08-23)

A gene that keeps species apart
Transgenic experiments show that the HMR gene has functionally diverged in Drosophila melanogaster and its sibling species and causes the death of hybrid offspring in interspecific crosses. (2004-06-15)

Changes to insect-seeking calls of horseshoe bats may drive new species formation
A new study by Tigga Kingston, a research associate in the Department of Geography at Boston University, and Stephen Rossiter, a National Environment Research Council research fellow in the School of Biological Sciences at Queen Mary, University of London, finds that a species of bat in Southeast Asia is diverging not because of geographical barriers, but because of acoustic differences in the calls its members make to locate the insects they eat. (2004-06-11)

Parting genomes: UA biologists discover seeds of speciation
Two closely related fruitfly populations are caught early in the act of evolving into new species. (2004-06-07)

Pack rat middens give unique view on evolution and climate change in past million years
Pack rat middens in Colorado's Porcupine Cave contain a 400,000-year record of vole populations going back a million years, providing UC Berkeley paleontologists with an unprecedented picture of how climate change affects mammal evolution. (2003-10-30)

Genetic basis for gender differences in the liver
Scientists at the University of Michigan Medical School have identified two genes responsible for an important, yet often overlooked difference between the sexes -- the liver. The report is published in the November 1 issue of Genes & Development. (2003-10-16)

Biodiversity's response to ecosystem productivity depends on historical plant, animal relationships
Some thirty million species now live on Earth, but their spatial distribution is highly uneven. Biologists since Darwin have been asking why. Now, scientists funded by the National Science Foundation (NSF), have discovered part of the answer: how plant and animal communities originally assembled is a predictor of future biodiversity and ecosystem productivity. (2003-07-23)

Biologists find unexpected rapid evolution in Caribbean lizards
Biologists at Washington University in St. Louis have documented unprecedented levels of speciation and diversification in Caribbean Anolis lizards. The discovery is completely unexpected and challenges the way evolutionary biologists think of evolution. (2003-07-14)

Natural selection's fingerprint identified on fruit fly evolution
Researchers at the University of Rochester have produced compelling evidence of how the hand of natural selection caused one species of fruit fly to split into two more than 2 million years ago. The study answers one of evolutionary biologists' most basic questions--how do species divide--by looking at the very DNA responsible for the division. (2003-06-12)

Male pregnancy in seahorses may affect formation of new species
Male pregnancy in seahorses may do more than reverse traditional gender roles. It could also influence the way new species form from single populations of these ancient creatures. (2003-05-05)

Butterflies use polarized light to attract mates
Up to 20 layers of transparent scales on butterfly wings scatter white light to produce brilliant blue structural color. Alison Sweeney, Duke University, and collaborators at the Smithsonian Tropical Research Institute report in Nature that polarized light from iridescent female Heliconius butterflies functions as a mating signal. This may be the first example of mate recognition based on polarized light. Physical properties of wing scales may play an important role in speciation of Heliconius butterflies. (2003-04-30)

New thoughts on evolution arise from UH yeast study
The sex life of yeast has University of Houston biologists fermenting new ideas about evolution and beer. Researchers studying yeast reproductive habits have for the first time observed a rapid method for the creation of new species, shedding light on the way organisms evolve and suggesting possible ways to improve yeast biotechnology and fermentation processes used in beer and wine-making. (2002-11-28)

Biologist's new experiment may vindicate Darwin
Charles Darwin was an avid proponent of the idea that a single species need not be geographically divided to evolve into separate species. Though his idea was later largely dismissed, in the last few decades modern biologists began to discover that he may have been quite right all along. Now the theory behind one such idea is undergoing its most exhaustive test yet at the University of Rochester. (2002-09-25)

Plant Genetics 2003: Mechanisms of Genetic Variation
This conference on Plant Genetics will be the first of an annual series of specialist meetings sponsored by the American Society of Plant Biologists (ASPB). The focus of this meeting will be on the nature and mechanisms of genetic variation and their effects on evolution of plant form and function, as well as on plant speciation and crop domestication. (2002-06-28)

Silvereye birds help scientists to settle disputed evolutionary theory
A study of birds on Pacific islands shows conclusively that the formation of new species is a gradual and not a sudden process, according to biologists from the UK, France, Australia and the USA writing in the Proceedings of the National Academy of Sciences today (28 May issue). (2002-05-27)

Insect yields clues to evolution of species
Studies of a California insect, the walking stick, are helping to illuminate the process of evolution of new species, according to research published in this week's issue of Nature. (2002-05-22)

New research could spearhead permanent nuclear waste storage
Researchers armed with a laser are closer to knowing how to prepare millions of gallons of highly radioactive nuclear waste for permanent storage. (2002-05-06)

Natural sugars can skew radioactive tracer results
It's a well-known fact that too much sugar can make you gain weight and rot your teeth, but it turns out it can also interfere with scientific tests designed to track important processes in the Earth's oceans. (2002-04-30)

Men regain evolutionary driver's seat
Researchers from the University of Chicago have estimated that genetic mutations - the raw material for evolution - occur 5.25 times more often in males than in females. Their study - published in the April 11 issue of Nature - should lay to rest any doubts raised by recent studies questioning the dominant role males play in producing mutations for molecular evolution. (2002-04-10)

Identification of genes may tell how plants recognize pollen
HHMI researchers have identified the genes that code for proteins that coat the pollen of Arabidopsis thaliana. The studies may help scientists understand how plants recognize pollen from their own species, which could enable crop scientists to cross previously incompatible plant species or prevent genetically engineered plants from crossing with wild-type plants. (2001-06-28)

Parasite's sperm-encryption keeps species apart
Scientists have found the most convincing evidence yet that a parasite can contribute to splitting a species in two, thanks to a phenomenon where a wasp's damaged sperm can be (2001-02-07)

Biologists uncover Darwin's 'missing evidence' for divergence of species in a warbler's song
Biologists at the University of California, San Diego have demonstrated, in a study of the songs and genetics of a series of interbreeding populations of warblers in central Asia, how one species can diverge into two. (2001-01-16)

Galapagos finches sing different mating songs due to evolutionary diversification of beaks, says UMass biologist
An evolutionary biologist at the University of Massachusetts has presented new evidence that the different courting songs sung by the famous Darwin's finches of the Galapagos Islands, Ecuador, may be shaped by the evolutionary diversification of their beaks. Jeffrey Podos details his findings in the Jan. 11 issue of the journal Nature. (2001-01-09)

Study illustrates diversification, speciation in biological "islands"
Lizard species on large Caribbean islands are more numerous than those on smaller islands because there is more evolution going on. Jonathan Losos, biology professor at Washington University in St. Louis, has shown that the bigger the island, the faster species proliferate and diversity. His study complements the famed (2000-12-13)

Fish and flies caught in the act of speciation, Science researchers report
Two separate studies show that new species might evolve faster than ever imagined. Salmon adapted to different habitats and evolved partial (2000-10-19)

New species arise more quickly than previously believed, UMass researcher finds
The splitting of a species into two new species may occur in far fewer generations than scientists previously believed, according to a study led by University of Massachusetts postdoctoral researcher Andrew Hendry. Hendry, an evolutionary ecologist, conducted his study on two populations of sockeye salmon in the Pacific Northwest. The findings are published in the Oct. 20 issue of the journal Science. (2000-10-18)

Gene tug-of-war leads to distinct species
By crossing two mouse species that normally do not interbreed, HHMI researchers have gained a better understanding of how gene imprinting can influence the establishment of distinct species. (2000-04-30)

Lizard research bolsters theory that forest edges are hotbeds of speciation
Challenging long-held views that geographic isolation is the singular driver of species diversity in rainforests, a team of researchers report in the Nov. 23 issue of the Proceedings of the National Academy of Science that natural selection in forest peripheries, or (1999-11-21)

Study Of Origin Of Species Enters The Molecular Age
Nothing brings two people closer together than sex, but for closely related species of fruit flies, it may be what keeps them apart. Researchers at the University of Chicago have recently discovered a gene that appears to play a crucial role in causing one species to split into two--and stay that way. The gene causes the male progeny of two recently separated species to be sterile--a condition known as hybrid male sterility. (1998-11-20)

Does Mountain Living Slow Rate Of Molecular Evolution?
A study of hummingbirds living high in the Andes Mountains suggests that life at the top slows the pace of genetic evolution. (1998-05-28)

New Biodiversity Theory Suggests Rain Forest Conservation Falls Short: Saving "Edge" Habitats May Be Key To Saving Rain Forest Biodiversity
Scientists from San Francisco State University report in the June 20 issue of SCIENCE a new theory that challenges long- held views on how rain forest biodiversity is generated, and suggests the key to conservation lies in protecting overlooked transitional zones along the forest periphery. (1997-06-19)

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